User's Manual

23
Chapter 1 Understandin
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RFID Reader
Issue “#@sys_kalive” command to keep system active for a further period of time. Each
time with this command issued, the delay time for system shutdown and power saving
mode will be reset.
Command:
#@sys_kalive\r
Purpose Keep the System Alive
Response OK\r
ERR,[code]\r
1.1.4 LOW BATTERY ALARM
By default, the battery alarm will beep when the battery charge gets low. In order to
prevent data loss, it is advised to replace the battery immediately when hearing two
short beeps (high tone).
Command:
#@sys_battery?\r
Purpose Get Remaining Capacity of Battery
Response OK,[m],[n]\r
[m]: remaining battery capacity. (e.g. 100%)
[n]: charging status
‘0’ – not charging
‘1’ – being charged
‘2’ – fully charged
ERR,[code]\r
#@sys_lbalarm?\r
Purpose Get Low Battery Alarm
Response OK,[m]\r (Default m= ‘1’)
[m]: ‘0’ – Disable
‘1’ – Enable
ERR,[code]\r
#@sys_lbalarm=[m]\r
Purpose Set Low Battery Alarm
Response OK\r
ERR,[code]\r